189933932154 has 32 divisors (see below), whose sum is σ = 383310480960. Its totient is φ = 62737778432.

The previous prime is 189933932107. The next prime is 189933932239. The reversal of 189933932154 is 451239339981.

It is a junction number, because it is equal to n+sod(n) for n = 189933932094 and 189933932103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3491149 + ... + 3545135.

It is an arithmetic number, because the mean of its divisors is an integer number (11978452530).

Almost surely, 2^189933932154 is an apocalyptic number.

189933932154 is an abundant number, since it is smaller than the sum of its proper divisors (193376548806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189933932154 is a wasteful number, since it uses less digits than its factorization.

189933932154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59294.

The product of its digits is 6298560, while the sum is 57.

The spelling of 189933932154 in words is "one hundred eighty-nine billion, nine hundred thirty-three million, nine hundred thirty-two thousand, one hundred fifty-four".